Close search panel

Where to find PIN + PUK codes

PIN Code

Your original PIN code is located on the back of the booklet that came with your SIM card.

If you have changed your PIN code and forgotten it, Tesco Mobile cannot retrieve it.

Retrieving Your PIN Code

  • Check the back of the booklet received with your SIM card.
  • Need help?  Start a chat  or call our team at 1903.

Changing Your PIN Code

You may want to change your PIN to something easier to remember. Refer to your phone’s manual for instructions.

PUK Code

A mobile phone will request the PUK code if the PIN is entered incorrectly more than 3 times.

Retrieving Your PUK Code

The PUK code is printed on the back of the booklet that came with your SIM card.

 Contact Customer Care  through the My Tesco Mobile app or by calling 1903 if you require further help.

PIN Blocked

If your phone displays 'PIN blocked' or 'Enter PUK', it means the PIN was entered incorrectly three times. Use your PUK code to unlock your phone.

Important Notes

If the PUK code is entered incorrectly 10 times, your SIM card will be permanently locked, and you’ll need a replacement SIM card.

Visit your nearest Tesco store to get a new SIM card and transfer your number.

Help Centre Search

Find information about your plan details, billing, coverage, and more.

Call us image

Call Us


Choose your new handset and price plan from the great offers available from our Telesales team.


089 494 1000

Mon-Fri                     9.30 am - 8.00 pm

Sat                              9.30 am - 6.00 pm



Chat icon

Chat to us

You can always chat to a member of our team.

Sun-Sun

8.00 am - 8.00 pm

Live chat now
Location Icon

Call in to see us

Drop into one of our 46 Phone Shops across Ireland.

Store Locator